USCG Exam Practice · Rule 35 — Sound Signals in Restricted Visibility
In restricted visibility, a sailing vessel underway shall sound which fog signal?
- AOne prolonged blast at intervals of not more than 2 minutes
- BTwo prolonged blasts at intervals of not more than 2 minutes
- COne prolonged followed by two short blasts at intervals of not more than 2 minutes✓ correct
- DOne prolonged followed by three short blasts at intervals of not more than 2 minutes
Why C is correct
33 CFR §83.35(c) groups sailing vessels with vessels not under command, vessels restricted in ability to maneuver, vessels engaged in fishing, and vessels towing or pushing, all of which sound one prolonged followed by two short blasts at intervals of not more than 2 minutes. One prolonged followed by three short blasts is the signal for a vessel being towed.
Cited:33 CFR §83.35(c)
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